/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package control;

import database.database;
import java.io.IOException;
import java.io.PrintWriter;
import java.security.NoSuchAlgorithmException;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Didik
 */
public class Register extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet Register</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet Register at " + request.getContextPath () + "</h1>");
            out.println("</body>");
            out.println("</html>");
             */

            System.out.println("MySQL Connect Example.");
            database db = new database();
            db.createConnection();
            if (request.getParameter("name") != null && request.getParameter("name") != "" && request.getParameter("username") != null && request.getParameter("username") != "" && request.getParameter("password") != null && request.getParameter("password") != "" && request.getParameter("email") != null && request.getParameter("email") != "") {
                String name = request.getParameter("name").toString();
                String username = request.getParameter("username").toString();
                String userpass = request.getParameter("password").toString();
                String email = request.getParameter("email").toString();
                if (!database.isExistUsername(username, db.getConnect())) {
                    db.addUser(name, username, userpass, email);
                    request.setAttribute("feedback", "registration success");
                } else {
                    request.setAttribute("feedback", "username not available");
                }
            }else{
                request.setAttribute("feedback", "invalid field!");
            }
            //   db.closeConnection();
            db.closeConnection();
            //System.out.println("Connected to the database");
            String nextJSP = "/register.jsp";
            RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP);
            dispatcher.forward(request, response);

            //System.out.println("Disconnected from database");

        } catch (NoSuchAlgorithmException ex) {
            out.print(ex);
            Logger.getLogger(Register.class.getName()).log(Level.SEVERE, null, ex);
        } catch (ClassNotFoundException ex) {
            out.print(ex);
            Logger.getLogger(Register.class.getName()).log(Level.SEVERE, null, ex);
        } catch (SQLException ex) {
            out.print(ex);
            Logger.getLogger(Register.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            out.close();
        }

        //RequestDispatcher dispatcher = request.getRequestDispatcher("registration.jsp");
        //dispatcher.forward(request, response);
        //response.sendRedirect("registration.jsp");

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
